Log message:
Move most of the version selection logic into version.mk.

Provide a new variable, GO_PACKAGE_DEP, with the correct dependency on
the user-selected Go version, to be used for fixing syncthing and friends.

Log message:
Use lang/go111, not lang/go, for package builds.

This moves builds of packages using Go off the unversioned lang/go package
and onto Go 1.11 or Go 1.9 (on NetBSD 6) by default.

There is a new, user-settable variable GO_VERSION_DEFAULT.

NOTE: not all Go packages completely implement this yet. For example,
net/syncthing does its own thing. This will be fixed.

Log message:
Add a versioned Go 1.10 package as lang/go110.

This uses a similar approach as go111. Its revision is one higher than
the existing lang/go.

Next steps:
 - make builds use this for dependent packages
 - delete lang/go to complete the move

Log message:
Add Go 1.11 as lang/go111.

This installs the go tool as go111; all the supporting files go under
$PREFIX/go111, so it does not conflict with other Go versions. Go packages
in pkgsrc do not use it to build yet.

Changes:

There are many changes and improvements to the toolchain, runtime, and
libraries, but two features stand out as being especially exciting: modules
and WebAssembly support.

This release adds preliminary support for a new concept called \ 
"modules," an
alternative to GOPATH with integrated support for versioning and package
distribution. Module support is considered experimental, and there are still
a few rough edges to smooth out, so please make liberal use of the issue
tracker.

Go 1.11 also adds an experimental port to WebAssembly (js/wasm). This allows
programmers to compile Go programs to a binary format compatible with four
major web browsers.

Log message:
lang/go: Improve PRINT_PLIST_AWK for Go packages

Go packages create ${PREFIX}/bin and ${PREFIX}/gopkg even when they
don't install anything in them. This change sets PRINT_PLIST_AWK to
ignore such empty directories.

Log message:
lang/go: Add SYS_IOCTL on SunOS. Bump PKGREVISION.

Log message:
lang/go/go-package: Honor MAKE_ENV and set GOCACHE under WRKDIR

Previously GOCACHE was not passed as environment variable and hence
during the build of packages the cache was stored in `${GO} env
GOCACHE' (${XDG_CACHE_HOME} if defined or ${HOME}/.cache).

Pass GOCACHE so that all cached file will ends up under ${WRKDIR}.

While here also pass both GOPATH and GOCACHE via MAKE_ENV.

Thanks to Antonio Huete Jimenez for spotting this problem!

Discussed and ok by <bsiegert>, thanks!

Log message:
Update Go to 1.10.4.

go1.10.4 (released 2018/08/24) includes fixes to the go command, linker, and
the net/http, mime/multipart, ld/macho, bytes, and strings packages. See the
Go 1.10.4 milestone on our issue tracker for details.

pkgsrc note: After the import of Go 1.11, this package will be renamed to
lang/go110.

Log message:
Recursive bump for perl5-5.28.0

Log message:
Update go19 to 1.9.7, latest on that branch.

go1.9.5 (released 2018/03/28) includes fixes to the compiler, go command, and
net/http/pprof package. See the Go 1.9.5 milestone on our issue tracker for
details.

go1.9.6 (released 2018/05/01) includes fixes to the compiler and go command.
See the Go 1.9.6 milestone on our issue tracker for details.

go1.9.7 (released 2018/06/05) includes fixes to the go command, and the
crypto/x509, and strings packages. In particular, it adds minimal support to
the go command for the vgo transition. See the Go 1.9.7 milestone on our issue
tracker for details.